Is there anything worng with using a Tasbeah? What if it helps you concentrate on Dikr and keep a count of how much you have read?
theres nothing wrong with keeping a tasbih although it is also good to count dhikr on your right hand the Sunnah way. A tasbih(rosary) is brilliant because it actually reminds one to do dhikr in the first place whereas if one did'nt have one then one would be less likely to actually do dhikr or remember to do dhikr in the first place.